Changes

==Claims of experimental verification==

==Claims of experimental verification==

Using technology that is outdated by more than 80 years today, in 1932 an English and an Irish physicist, John Cockcroft and Ernest Walton, as a byproduct of ''&quot;their pioneer work on the transmutation of atomic nuclei by artificially accelerated atomic particles&quot;''<ref>[http://www.nobelprize.org/nobel_prizes/physics/laureates/1951/# Nobel Prize Organization]</ref> for which they were honored with the [[Nobel Prize]] in physics in 1951 -- but not for verifying ''E=mc&sup2;''.  The idea of the mass defect - and its calculation using ''E=mc&sup2;'' can be found on page 169-170 of his Nobel lecture.<ref>[http://www.nobelprize.org/nobel_prizes/physics/laureates/1951/cockcroft-lecture.pdf John D. Cockroft ''Experiments on the interaction of high-speed nucleons with atomic nuclei''], Nobel Lecture, Dec 11, 1951</ref>

Using technology that is outdated by more than 80 years today, in 1932 an English and an Irish physicist, John Cockcroft and Ernest Walton, as a byproduct of ''&quot;their pioneer work on the transmutation of atomic nuclei by artificially accelerated atomic particles&quot;''<ref>[http://www.nobelprize.org/nobel_prizes/physics/laureates/1951/# Nobel Prize Organization]</ref> for which they were honored with the [[Nobel Prize]] in physics in 1951 -- but not for verifying ''E=mc&sup2;''.  Neither the Nobel Committee nor the prize recipients made any claim to verify ''E=mc&sup2;''.<ref>[http://www.nobelprize.org/nobel_prizes/physics/laureates/1951/cockcroft-lecture.pdf John D. Cockroft ''Experiments on the interaction of high-speed nucleons with atomic nuclei''], Nobel Lecture, Dec 11, 1951</ref>

They bombarded [[Lithium]] atoms with [[protons]] having a [[kinetic energy]] less than 1 [[Electron-Volts|MeV]]. The result were two (slightly less heavy) [[&alpha;-particle]]s, for which the [[kinetic energy]] was measured as 17.3 MeV

They bombarded [[Lithium]] atoms with [[protons]] having a [[kinetic energy]] less than 1 [[Electron-Volts|MeV]]. The result were two (slightly less heavy) [[&alpha;-particle]]s, for which the [[kinetic energy]] was measured as 17.3 MeV